Hudson Bay Capital Management
MIAX

Hudson Bay Capital Management’s Miami International Holdings MIAX Stock Holding History

Hudson Bay Capital Management’s Portfolio MIAX Stock Details MIAX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.15M Sell
29,636
-71,916
-71% -$2.96M ﹤0.01% 859
2025
Q4 		$4.51M Buy
101,552
+60,407
+147% +$2.69M 0.01% 530
2025
Q3 		$1.66M Buy
+41,145
New +$1.51M 0.01% 782

Other funds holding MIAX

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
HKAM
Horizon Kinetics Asset Management New York $9.23B AUM 27.52% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Hudson Bay Capital Management's MIAX Position: Q1 2026 in Review

Hudson Bay Capital Management reduced its Miami International Holdings (MIAX) stake by 71% in Q1 2026, selling an estimated $2.96M and leaving 29,636 shares worth $1.15M. The position accounts for ﹤0.01% of the portfolio, ranked #859.

Hudson Bay Capital Management first reported a position in MIAX in Q3 2025 and has held it in 3 quarters since. The position peaked at $4.51M in Q4 2025. 201 funds tracked by Wall St. Rank hold MIAX as of Q1 2026.

  • Hudson Bay Capital Management held 29,636 shares of Miami International Holdings worth $1.15M as of Q1 2026.
  • Hudson Bay Capital Management sold 71,916 Miami International Holdings shares in Q1 2026, an estimated $2.96M.
  • Miami International Holdings made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #859 holding.
  • Hudson Bay Capital Management first reported a position in Miami International Holdings in Q3 2025 and has held it in 3 quarters since.
  • Hudson Bay Capital Management's Miami International Holdings position peaked at $4.51M in Q4 2025.
  • 201 funds tracked by Wall St. Rank held Miami International Holdings as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.